How To Fix CNV_NCE_BAS166 - Number &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 166

• Message text: Number &1 does not exist

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS166 - Number &1 does not exist ?

  The SAP error message CNV_NCE_BAS166 with the description "Number &1 does not exist" typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools or during the execution of certain programs related to the SAP Conversion or Migration projects.
  Cause:
  
  
  Missing Data: The most common cause of this error is that the system is trying to reference a number (such as a document number, ID, or key) that does not exist in the database. This could be due to:
  
  Data not being migrated properly.
  Incorrect configuration or mapping during the migration process.
  The number being deleted or not created in the first place.
  
  
  
  Incorrect Input: The error may also arise if the input provided to the program or transaction is incorrect or does not match the expected format.
  
  
  Configuration Issues: There may be issues with the configuration settings in the migration tool or the source system that lead to the system looking for a non-existent number.
  
  
  Solution:
  
  
  Check Data Existence: Verify that the number referenced in the error message actually exists in the relevant database tables. You can do this by querying the database or using transaction codes like SE16 or SE11 to check the relevant tables.
  
  
  Review Migration Logs: If this error occurs during a migration process, review the migration logs for any warnings or errors that might indicate why the number is missing.
  
  
  Correct Input Values: Ensure that the input values being used in the transaction or program are correct and conform to the expected format.
  
  
  Re-run Migration: If the number is indeed missing due to a failed migration, you may need to re-run the migration process for the relevant data.
  
  
  Consult Documentation: Check the SAP documentation or notes related to the specific migration tool or process you are using. There may be specific instructions or known issues related to this error.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may have additional insights or patches available for your specific situation.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), and others that may help in troubleshooting.
  SAP Notes: Search for SAP Notes related to CNV_NCE_BAS166 in the SAP Support Portal, as there may be specific fixes or recommendations provided by SAP.
  Migration Tools: If you are using tools like SAP S/4HANA Migration Cockpit or SAP Data Services, ensure you are following the best practices and guidelines provided in the respective documentation.
  
  By following these steps, you should be able to diagnose and resolve the CNV_NCE_BAS166 error effectively.